Modem



FIG. 1 is a top plan view of a modem showing my new design;

FIG. 2 is an elevational view of one side of the modem, the view from the opposing side being a mirror image thereof;

FIG. 3 is a front elevational view of the modem;

FIG. 4 is a rear elevational view of the modem;

FIG. 5 is a bottom plan view of the modem; and,

FIG. 6 is a perspective view of the modem. 

The ornamental design for a modem, as shown and described. 